After a few centuries of misery, human life cedes to exist. That's "... ceases to exist." <grin> "A few centuries." - that's wildly optimistic. I'd give it a

After a few centuries of misery, human life cedes to exist. That's "... ceases to exist." <grin> "A few centuries." - that's wildly optimistic. I'd give it a year or two at most.